At Fashion Week, the major brands all vied to outdazzle each other.
Tips
history
From Wu Zeng's Song-dynasty 《能改斋漫录·方物·芍药谱》: the finest peony varieties 争妍斗奇, the old ones not yet tired of but the new already thriving. The flower-competition metaphor fixed early; the modern form lightly varies the characters.
usage
Primary use is literal - flowers in bloom. Figurative extensions: fashion shows, art exhibits, design competitions, any scene where many beautiful or novel things compete for attention. Always positive.